Biology:Szybalski's rule

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Szybalski's rule says that lower-protein particles like viruses contain more purines than pyrimidine in their nucleic acid sequence.[1] This is to prevent double-stranded RNA formation of one or two separate RNA strand that have complementary regions. The formation of a double-stranded RNA is not efficient for viruses as it may delay or stop RNA replication or protein formation.[2] The rule is named for Wacław Szybalski.

References

  1. "Pyrimidine clusters on the transcribing strand of DNA and their possible role in the initiation of RNA synthesis". Cold Spring Harb Symp Quant Biol 31: 123–127. 1966. doi:10.1101/SQB.1966.031.01.019. PMID 4966069. 
  2. "Thermophilic Bacteria Strictly Obey Szybalski's Transcription Direction Rule and Politely Purine-Load RNAs with Both Adenine and Guanine". Genome Res 10 (2): 228–236. 2000. doi:10.1101/gr.10.2.228. PMID 10673280.